Salamanca Hiddle is our awesome narrator. She takes turns telling us about her road trip from Missouri to Idaho with Gram and Gramps and telling Gram and Gramps the story of Phoebe's missing mother.
She's a good narrator because she notices everything. She is a professional observer. In fact, if she had a superpower, it would be the power of noticing things. For example, she picks up on Mrs. Winterbottom's unhappiness immediately.
I could tell that Mrs. Winterbottom was trying to rise above some awful sadness she was feeling, but Prudence couldn't see that. Prudence had her own agenda. (17.22)
One other thing that really defines Sal as a narrator is just how much she likes to tell us about her memories. It seems like every two seconds something she sees or hears reminds her of something back in Bybanks. For example, when Mrs. Winterbottom offers her blackberry pie, Sal remembers her mother, and a particular blackberry picking trip they took together (6.18). The best part is, she always brings us along for these awesome trips down memory lane.
Walk Two Moons would be a totally different book if it weren't told by Sal, and to be honest, we're not so sure we'd want to read it.